Patients with disease progression after 2 courses may receive 2 additional courses of cell infusion followed by interleukin-2 (IL-2) on one of two schedules. One cohort of patients receives IL-2 by intravenous bolus over 15 minutes every 8 hours beginning on the day after cell infusion and continuing for up to 5 days of each treatment course. Another cohort receives IL-2 by daily subcutaneous injections on days 1-12 of each course of therapy. If after 12-16 patients have been treated with cloned cells alone initially and responses are inadequate, subsequent patients entered into this study are randomized to receive the cell infusion followed by IL-2 on one of the two described schedules.